Duilio Beretta and Renzo Olivo are the defending champions but Olivo decided no to participate.
Beretta played alongside Andrea Collarini and lost in the Quarterfinals to Nicolás Barrientos and Eduardo Struvay.
Marcelo Arévalo and Sergio Galdós defeated Alejandro González and Carlos Salamanca 6–3, 6–4 in the final.
Facundo Argüello and Agustín Velotti were the defending champions but decided not to participate.
Andrés Molteni and Fernando Romboli defeated Marcelo Demoliner and Sergio Galdós 6–4, 6–4 in the final.
These are the ATP Challenger Tour doubles matches for the 2014 Trofeo Ricardo Delgado Aray.
Andrés Molteni and Fernando Romboli were the defending champions, but both players chose not to participate.
Roberto Maytín and Hans Podlipnik-Castillo are the defending champions, but Maytín has partnered with Miguel Ángel Reyes-Varela and Podlipnik-Castillo has chosen not to participate. Roberto Maytín and Miguel Ángel Reyes-Varela are defeated by Ariel Behar and Giovanni Lapentti in the quarterfinals.
Facundo Argüello and Facundo Bagnis were the defending champions but only Argüello has returned to defend his title partnering Nicolás Kicker.
Chase Buchanan and Blaž Rola were the defending champions but chose not to participate.
Marcelo Arévalo and Sergio Galdós were the defending champions, but only Arévalo decided to defend his title, partnering Darian King. Arévalo lost in the quarterfinals to Alejandro Falla and Eduardo Struvay.
Guillermo Durán and Andrés Molteni were the defending champions but only Molteni chose to defend his title, partnering Guido Andreozzi. Molteni lost in the first round to Franco Agamenone and Federico Zeballos.
Julio Peralta and Horacio Zeballos were the defending champions but chose not to defend their title.
Philip Bester and Peter Polansky were the defending champions but chose not to defend their title.
Marcelo Arévalo and Sergio Galdós were the defending champions but chose to defend their title with different partners. Arévalo partnered Miguel Ángel Reyes-Varela and successfully defended his title. Galdós partnered Roberto Maytín but lost in the first round to Arévalo and Reyes-Varela.
The doubles event at the 2017 Milo Open Cali was won by Marcelo Arévalo and Miguel Ángel Reyes-Varela. Nicolás Jarry and Hans Podlipnik-Castillo were the defending champions but chose not to defend their title and did not participate in the 2017 event. Arévalo and Reyes-Varela won the title after defeating Sergio Galdós and Fabrício Neis 6–3, 6–4 in the final.
Ariel Behar and Fabiano de Paula were the defending champions but chose to defend their title with different partners. Behar partnered Attila Balázs but lost in the semifinals to Marcelo Arévalo and Miguel Ángel Reyes-Varela. De Paula partnered Sergio Galdós but lost in the first round to Hugo Dellien and Federico Zeballos.
Andrés Molteni and Diego Schwartzman were the defending champions but only Molteni chose to defend his title, partnering Sergio Galdós. Molteni lost in the first round to Pedro Cachín and Nicolás Jarry.
Austin Krajicek and Jackson Withrow were the defending champions but only Krajicek chose to defend his title, partnering Matt Reid. Krajicek withdrew before the tournament began due to injury.
Roberto Quiroz and Caio Zampieri were the defending champions but only Quiroz chose to defend his title, partnering Yannick Hanfmann. Quiroz lost in the quarterfinals to Jay Clarke and Kevin Krawietz.
This was the first edition of the tournament.
Ruan Roelofse and Christopher Rungkat were the defending champions but chose not to defend their title.
Marcelo Arévalo and Miguel Ángel Reyes-Varela were the defending champions but chose not to defend their title.
Philip Bester 
Marcelo Arevalo 
Sergio Galdos 
